And check out John Farnam of Defense Training International...VN combat Marine and former LEO...
Read his QUIPS at the website...Lots of good training and advice there...
I will ..... have in the past, thanks for the reminder to refresh.
Here is one I like to follow currently......Pat McNammera.
https://www.youtube.com/channel/UCOZdThjffqiGL6xWETXEAuw